Thank you for your feedback. We’re happy to announce that an option to choose between Windows 10 Native Notifications and Teams Notifications is included in our Dec 2020 Public Preview pack, and will be available to users who opt into Public Preview.
You can learn more about the new Microsoft Teams Public Preview program here: https://aka.ms/TeamsPublicPreview, and Teams administrators can find documentation to manage which users will see the Public Preview option here: https://aka.ms/TeamsPublicPreviewAdmin
Once support for Windows 10 native notifications is released, users who choose to use Windows notifications will be able to utilize Windows OS specific settings for the length of time to display notifications. Mac does not have an OS specific setting, so will not have the support.
An error occurred while saving the commentDan commented
I want this as a feature, Allow always on top.